Ubuntu Security Notices

Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.

To report a security vulnerability in an Ubuntu package, please contact the Security Team.

The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.

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USN-6060-3: MySQL regression

15 May 2023

USN-6060-1 introduced a regression in MySQL.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

USN-6075-1: Thunderbird vulnerabilities

15 May 2023

Several security issues were fixed in Thunderbird.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-32206, CVE-2023-32215, CVE-2023-32211 + 4 others

USN-6073-4: os-brick vulnerability

11 May 2023

os-brick could be made to expose sensitive information.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-2088

USN-6073-3: Nova vulnerability

11 May 2023

Nova could be made to expose sensitive information.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-2088

USN-6073-2: Glance_store vulnerability

11 May 2023

Glance_store could be made to expose sensitive information.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-2088

USN-6073-1: Cinder vulnerability

11 May 2023

Cinder could be made to expose sensitive information.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-2088

USN-6068-1: Open vSwitch vulnerability

10 May 2023

Open vSwitch could be made to stop forwarding packets if it received specially crafted network traffic.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-1668

USN-6064-1: SQL parse vulnerability

10 May 2023

SQL parse could be made to denial of service if it received a specially crafted regular expression.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2023-30608

USN-6063-1: Ceph vulnerabilities

9 May 2023

Several security issues were fixed in Ceph.

  • Ubuntu 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2021-3979, CVE-2022-3854, CVE-2022-3650 + 1 other

USN-6062-1: FreeType vulnerability

9 May 2023

FreeType could be made to crash or possibly execute arbitrary code if it opened a specially crafted font file.

  • Ubuntu 23.04 ,
  • 22.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-2004

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